package com.lscl.rabbitmq;

import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class Producer03_PubSub {

    public static void main(String[] args) throws Exception {
        // 创建连接工厂,用于获取频道channel
        ConnectionFactory factory = new ConnectionFactory();

        factory.setHost("192.168.40.132");
        factory.setPort(5672);
        factory.setUsername("lscl");
        factory.setPassword("admin");
        factory.setVirtualHost("/lscl");

        // 2.创建连接
        Connection connection = factory.newConnection();

        // 3.创建频道
        Channel channel = connection.createChannel();

        String exchangeName = "test_fanout";

        //5. 创建交换机
        /*
           exchangeDeclare(String exchange, BuiltinExchangeType type, boolean durable, boolean autoDelete, boolean internal, Map<String, Object> arguments)
           1. exchange:交换机名称
           2. type:交换机类型
               DIRECT("direct"),：定向
               FANOUT("fanout"),：扇形（广播），发送消息到每一个与之绑定队列。
               TOPIC("topic"),通配符的方式
               HEADERS("headers");参数匹配
           3. durable:是否持久化
           4. autoDelete:自动删除
           5. internal：内部使用。 一般false
           6. arguments：参数
        */
        channel.exchangeDeclare(exchangeName, BuiltinExchangeType.FANOUT,true,false,false,null);

        //6. 创建队列
        String queue1Name = "test_fanout_queue1";
        String queue2Name = "test_fanout_queue2";

        channel.queueDeclare(queue1Name,true,false,false,null);
        channel.queueDeclare(queue2Name,true,false,false,null);
        //7. 绑定队列和交换机
        /*
        queueBind(String queue, String exchange, String routingKey)
        参数：
            1. queue：队列名称
            2. exchange：交换机名称
            3. routingKey：路由键，绑定规则
                如果交换机的类型为fanout ，routingKey设置为""
         */
        channel.queueBind(queue1Name,exchangeName,"");
        channel.queueBind(queue2Name,exchangeName,"");

        String body = "呼叫各位";
        //8. 发送消息
        channel.basicPublish(exchangeName,"",null,body.getBytes());

        //9. 释放资源
        channel.close();
        connection.close();
    }

}
